OSPFv2 commands area <AREA-ID> area <AREA-ID> default-metric area <AREA-ID> nssa area <AREA-ID> range area <AREA-ID> stub area <AREA-ID> virtual-link authentication authentication-key clear ip ospf statistics dead-interval default-metric disable distance enable graceful-restart hello-interval ip ospf <instance-tag> area ip ospf authentication ip ospf authentication-key ip ospf cost ip ospf dead-interval ip ospf hello-interval ip ospf message-digest-key md5 ip ospf network ip ospf passive ip ospf priority ip ospf retransmit-interval ip ospf shutdown ip ospf transit-delay max-metric router-lsa maximum-paths message-digest-key md5 passive-interface default redistribute reference-bandwidth retransmit-interval rfc1583-compatibility router ospf router-id show ip ospf show ip ospf border-routers show ip ospf interface show ip ospf lsdb show ip ospf neighbors show ip ospf routes show ip ospf statistics show ip ospf statistics interface show ip ospf virtual-links transit-delay trap-enable